Cheapest BMX Cranks in 2020

Author: Tim   Date Posted:29 January 2020 

Crank Buyers Guide

1pc, 2pc, 3pc? 

So you’re looking to buy cranks and you’ve been stopped at the first hurdle, 1,2 or 3? Let’s start at the beginning;

The One-piece Crank is (as its name suggests) a single piece of forged chomo so the crank and spindle is one solid piece. This design is used majorly in cheaper lower quality bikes and isn’t used often for freestyle BMX riding due to it’s inferior strength to the 2 and 3 piece systems. 

Two-piece Cranks are designed so one crank and the spindle will either be welded together or held in place by wedges. This style of crank offers strength durability and a unique look that 3 piece cranks can’t achieve. Two-piece cranks have become more popular in BMX over the last ten years with many trusted brands developing two-piece crank systems. 

Three Piece cranks are made up of three separate pieces of chromo bolted together. The advantages of the three-piece cranks offer are adjustable crank clearance and thicker tubes to enhance durability and strength. 


Due to the nature of BMX and force put on the cranks, it’s important that cranks are made durable and too last. Once you have decided which type of cranks you would like the next thing to consider is what material you want your cranks to be made of. BMX cranks are made of either Steel or Alloy. Aluminum cranks can weigh less while still offering a strong rigid crank. Steel cranks offer a durable, resistant crank and slightly smaller shapes and sizes due to the machining process of making the cranks.


Just like Riders, cranks come in all different shapes and sizes, the average size of BMX crank is 175mm, with most complete bikes coming with this size as standard. Shorter cranks 160mm-165mm offer a shorter rotational distance and therefore enable the rider to spin faster, (similar to spinning around on an office chair and pulling your arms in). Shorter cranks also make it easier to hop higher since your feet are closer together on the bike. (try jumping with your feet spread wide apart on the ground)

 The longer the cranks the more force the rider can apply to each crank, for park riders this is advantageous as fewer cranks will be required to reach a faster speed. However the longer the crank the longer the rotational distance and therefore for spinning could be slower.   


Riding Bmx puts a lot of stress on your bike parts, because of this, over the years several bike companies have offered a “Lifetime“ warranty, guaranteeing against different stresses and defaults in the parts. Cranks take a lot of pressure so it’s common sense that some companies will offer a lifetime warranty on cranks. These warranties usually only cover against specific damages and it’s important to check with the brand of cranks that you decide on for their warranty policies. 


Like all BMX parts Cranks come in a range of price points starting from $110 for a beginner set of chromo cranks all the way up to $649 for a high-quality set of chromo cranks. On average BMX cranks will cost between $300-$350 for most models of BMX Crank.